AnalyzedEmails (Graph API) Endpoint - Domain Creation Date Always Wrong

Musle Shankar Rao, Manasa 0 Reputation points
2026-08-14T03:13:11.73+00:00

We try to export the domain creation date using Microsoft Defender AnalyzedEmails (Graph API) Endpoint, and every time the data is showing wrong results (it shows the standard date time format **eg. **Domain Creation:01 Jan 0001, 00:00:00 UTC)

We tried this with both beta version and version 1.0 API, unfortunately, it did not help. We also raised this ticket with Microsoft TrackingID#[Moderator note: Personally Identifiable Information removed]

 , the ticket was closed without resolution, asking us to seek direct support from Microsoft Graph API team.
https://learn.microsoft.com/en-us/graph/api/security-collaborationroot-list-analyzedemails?view=graph-rest-1.0&tabs=http
Would appreciate if you could help us in this matter.

Microsoft 365 and Office | Office Online Server
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  1. Teddie Dang 1,185 Reputation points Independent Advisor
    2026-08-14T04:53:12.12+00:00

    Hi @Musle Shankar Rao, Manasa

    I can reproduce the issue you described. I tested the API with several different domains, and the result consistently shows:

    "domainCreationDateTime": "0001-01-01T00:00:00Z"

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    Based on this testing, I believe the domainCreationDateTime field is not being correctly populated by the backend service, rather than this being an issue with the API version or date-time formatting.

    As a fellow user like you, I can confirm the same behavior, but I don't have access to or the ability to intervene in the Microsoft product backend.

    At this point, I recommend raising the issue in the Microsoft Graph GitHub repository so that the product engineering team can investigate the behavior directly.

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